You can always implement it yourself, I believe this is one of those features that is somewhat application specific. Meaning that some people need it, but majority will never use. In those instances a custom patch or a module is the best solution.

As Illia says, the best way would be to implement this your self....
HOw??
A good idea would be to change the ranking system...
instead of it being based upon post count, it could be based upon the points a mod sets for each users post....
I am presently working on it...I already have a working version but i did not edited the source...i just hacked the compiled pages to get what i wanted...
i intend to make changes in the source so that themes can be rebuilt without having to worry about loosing the changes one makes to the coompiled themes...

btw illia, while we are on the subject of ranks/levels, which are the pages/functions that can affect or change the level_id in the users table?

from what i check,
1) the rank cache rebuilder, can change level id in user table
2)consistency checker can chnge it as well....
3) new messaage posted can afftect the level.....

are those the only three...or did i miss something..
I want to know so that i can remove the update level_id code so that the level_id is updated only when my custom rank_pts field is changed.....
regards and thanks in advance...